Athletic shirt



FIG. 1 is a perspective view of an athletic shirt showing my new design; the broken lines partially showing a cyclist and bicycle being for illustrative purposes only and forming no part of the claimed design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side elevational view thereof, the right side being a mirror image;

FIG. 4 is a top view thereof; and,

FIG. 5 is a bottom view thereof.

The broken lines shown on the claimed article throughout the views are understood to represent conventional stitching. 

The ornamental design for an athletic shirt, as shown and described. 